Schuch e 152 series User manual

o- Operating Instructions
Contents:
Safety Instructions
Standard Conformity
Technical Data
Dimensions
Mounting
Installation and Commissioning
Maintenance
The security of people and equipment in hazardous areas depends on the observance of all safety
standards. A condition for every maintenance work is the full knowledge of all valid regulations and
standards.
L-00815-4-07 8
Explosion-proof light fittings of series
e 152 ...
Zone 1 - equipment-category II 2 G
Zone 21 - equipment-category II 2 D
for operating bi-pin fluorescent tubes
by means of an electronic control gear
the gasket located in the housing.
- the correct installation and tightness of explosion-proof cable glands and explosion-proof locking screws.
Cleaning the light fitting:
Attention: At the plastic parts of the luminaire there is danger of ignition due to electrostatic charging!
Therefore do not wipe the light fitting with any dry cloth!
For cleaning the housing and cover use only cold or lukewarm water together with a viscose sponge or a
soft fibrous-free cloth.
Repairing and reconditioning the luminaire:
Attention: Replace damaged explosion-proof parts by original spare parts from the Adolf Schuch GmbH
only!
The lamp replacement has to be made according to item 6.3 of these operating instructions.
Lighting fitting in version with disconnecting switch: Before replacing the fluorecent tubes make sure that
the visible indication of the switch is ”green”.
Opening the light fitting in version without a disconnecting switch is allowed when it is idle only!
Attention: Removing the reflector is allowed when the lighting fitting is idle only!
Adolf Schuch GmbH
Lichttechnische Spezialfabrik
Mainzer Str. 172, D-67547 Worms am Rhein
Postfach (P.B.) 2145, D-67511 Worms, Telefon: [phone]
Phone: [phone] Internet: www.schuch.de
Telefax: +49 6241/4091- 29 E-Mail: [email protected]
Any misprints, errors or changes in the description of these operating instructions may occur.

2 7
1. Safety Instructions
This light fitting must be operated acc. to its certification only and, moreover, it must be in an undamaged
and clean condition.
Mounting / installation and maintenance work as well as any repair work on explosion-proof light fittings
must be done by skilled electricians only. They must be well trained with regard to operating explosion-
proof products.
Every structural modification will cause dangerous situations and consequently the certification of this light
fitting will be null and void.
If the light fitting is to be subject to a special application that is influenced chemically, mechanically,
thermically or electrically or if the light fitting will be subject to any kind of vibrations, it is highly
recommended to consult us before starting the installation.
Any application of the light fitting that is incorrect or even forbidden will lead to the fact that the
manufacturer's warranty is lost.
Transport and storage of the light fitting is allowed in its original packing material only.
In any circumstance, the following rules, regulations and instructions have to be respected:
- the generally accepted rules of the technical side, especially the determinations of IEC 60079-14 and
IEC 60079-17 for maintenance of explosion-proof appliances.
- the standards of EN 50281-1-2 when using the product in areas with combustible dust.
- the national rules for prevention of accidents and for safety standards.
- the safety instructions of these operating instructions.
- the characteristic data on the type plate and the instruction plates of the light fitting.
2. Standard Conformity
The explosion-proof light fitting of series e 152 ... is in conformity with the actual standards of technology.
It has been designed, manufactured and tested on the basis of EN 29001 (ISO 9001).
The emergency light fitting is in conformity with:
Directive 94/9/EC,
EN 50014:1997
EN 50017:1994
EN 50018:1994
EN 50019:1994
EN 50281-1-1:1998
EN 60529:1991+A1
Directive 89/336/EEC „Electromagnetic compatibility"
The light fitting e 152 ...
The test certificate is ready to be loaded down from our homepage - www.schuch.de - or we shall send it
on request.
has been approved for application in hazardous areas of zones 1 and 2 as well
as zones 21 and 22.
3. Technical Data
Explosion-proof light fitting for bi-pin fluorescent tubes with electronic control gear (ECG) and
disconnecting switch.
Series: e 152 ...
Explosion protection: xII 2 G EEx edq IIC T4 (standard version and version for pole mounting)
xII 2 G EEx eq II T4 (version without disconnecting switch)
xII 2 G EEx edq IIC T6 (version T6 only, with lamps 20 W of a 38 mm Ø
at an ambient temperature of +40°C max.)
xII 2 D T80°C
xII 2 D T90°C (special version of e 152 62 EVG and e 152 62 oS EVG
for an ambient temperature of +60°C max.)
Certification: PTB 97 ATEX 2223 (18 W or 20 W)
PTB 97 ATEX 2224 (36 W or 40 W)
PTB 97 ATEX 2225 (58 W or 65 W)
Lamps: Fluorescent tubes with lamp base G13 according to IEC 81
18 W, 36 W and 58 W, of a 26 mm Ø
20 W, 40 W and 65 W, of a 38 mm Ø
Rated voltage/frequency: 220 - 240 V ±10% AC, 50 - 60 Hz
198 - 254 V DC (operation of only one lamp in version e 152 .. ZB)
Insulation class: I
6.7 Insulation measurement
For measuring the insulating resistance the test voltage must be put on between the outer conductor and
the earth conductor or between the neutral conductor and the earth conductor only.
After finishing the insulation test a correct connection of the conductor between the mains and the light
fitting must be redone. Before starting operation the connection of the neutral conductor must be safe for
avoiding any damage whatsoever of the electronic ballast caused by any inadmissible excess-voltage in
case of an unbalanced mains load (see section 6.8).
correct incorrect
luminaire
with ECG
6.8 Electronic control gears (ECG) in three phase operation
The diagram shows the wiring for luminaires or luminaire groups in 3-phase circuits and with a common neutral
conductor N.
If the common neutral conductor is interrupted and voltage is present, then luminaires or groups of
luminaires may be exposed to unacceptably high voltages and consequently the electronic control gears
(ECG) may be destroyed.
N
test
U L
PE test
U
N
L
PE
test
U
N
L
PE
7. Maintenaince
Attention: Any repair, reconditioning and maintenance work on explosion-proof lighting fittings has
to be carried out by skilled electricians only!
The generally accepted rules of the technical side, the national safety standards and
especially the determinations of IEC 60079-14 and IEC 60079-17 for maintenance of
explosion-proof equipment must be observed.
If using the light fitting in areas with combustible dust, EN 50281-1-2 must be observed in
addition!
Please pay attention to the following in case of application in dusty atmospheres:
Dust deposits have got thermal insulation characteristic features i.e. the surface temperature of the
luminaire is getting higher in relation with the rising thickness of a dust layer (see the curve illustrated
in EN 50281-1-2). Consequently, it is a must that any dust deposits are regularly removed from the
lighting fitting so that any dust layers can never exceed a 5 mm thickness.
They must be well trained with regard to
operating explosion-proof products.
Service on the light fitting:
electronic control gear.
According to the relevant regulations explosion-proof light fittings need regular maintenance.
Especially components which are important for the Explosion Category have to be carefully checked.
For this reason you must carefully check:
- the condition of the lampholders and of the
- housing and cover for any possible cracks and other kind of damages.
- the efficiency of the gasket, i.e. you have to pay attention to the fact that all the hooks of the locking
system are internally touching the diffuser and that there is a uniform contact between the diffuser and

4. Dimensions
e 152 ..
6 3
e 152 .. PM
6.3 How to insert the fluorescent tubes
- insert the pins of the fluorescent tubes into the vertical slot of the
rotary-type lampholder.
- turn the fluorescent tube by 90° into its locking position.
(For removing the fluorescent tube you have to turn it further by 90°)
Attention: When operating type e 152 .. ZB in DC mode, only the
Sockets marked with a green dot will be active !
6.4 Notes for types with and without disconnecting switch
Only in version with disconnecting switch the fluorescent tubes and the
ECG are idle when the diffuser of the luminaire is open.
The visible indication of the disconnecting switch is green:
Disconnecting switch is open. ECG is idle.
The fluorecent tubes are ready to be removed or replaced.
The visible indication of the disconnecting switch is red:
Disconnecting switch is closed. ECG is live!
The light fitting is correctly closed.
Attention: If the indication is red when the diffuser is open, a lamp
replacement is not at all allowed!
The lighting fitting must be disconnected from the mains
and the switch must be checked!
The light fitting type e 152 .. oS (version without disconnecting switch)
must be disconnected from the mains before opening!
Attention: Removing the reflector is allowed only when the light
fitting is disconnected from the mains!
6.5 How to close the light fitting
For closing the luminaire you have to do the following:
- put the diffuser into the hinges.
- now close the diffuser and push it towards the gasket that is
located in the housing.
- use the triangular socket M6 for turning the triangular bolt
on the locking side of the luminaire in direction of the arrow
„Close”. Take care that all hooks of the locking system are in the
right contact with the inside of the diffuser and that they push
it onto the gasket in the housing so that there is a uniform contact.
6.6 Commissioning
Before commissioning this explosion-proof light fitting please observe and ensure that:
- the light fitting has been installed according to the regulations.
- the certified explosion-proof cable glands resp. explosion-proof locking screws are fixed in the housing
with a torque of 3 Nm (M25x1.5) or 2.3 Nm (M20x1.5).
- the connection cable has been firmly installed and is not subject to any tension whatsoever.
- the connection cables have been inserted correctly and are sealed by the gasket of the cable gland by
tightening the gland nut with a torque of 2 Nm for M25x1.5 respectively 1.5 Nm for M20x1.5.
- the electrical connection has been made correctly (see item 6.2).
- the fluorescent tubes have been properly inserted.
- the lighting fitting has been correctly closed i.e. the diffuser is correctly held by the hinges and that all
the hooks of the locking system are correctly touching the diffuser.
- there is a uniform contact between the diffuser and the gasket which is located in the housing.
- in version with disconnecting switch the visible indication of the switch shows the colour ”red”.
- the light fitting is not damaged whatsoever.
Attention: If the fluorescent tubes are defective whatsoever or if they are at the end of their life or if any
tubes are missing in the luminaire the ECG is switching the lampholders idle.
This safety cutoff status is terminated if the luminaire had been disconnected from the mains
over 15 seconds min. and if faultless fluorescent tubes have been inserted!
Ingress protection: IP66
Ambient temperature: The permissible ambient temperature is shown on the type plate!
-20 °C to +60 °C (Standard version for 18/20 W and 36/40 W,
special version for 58/65 W)
-20 °C to +50 °C (Standard version for 58/65 W and e 152 .. PM,
special version with series terminals and/or
individual ballasts and mirror-type reflector)
-20 °C to +40 °C (Version T6)
Cable entry: Certified explosion-proof cable gland of thread size M20 x 1.5 resp. M25 x 1.5
Connection per terminal: Two wires with uniform diameter: 0.75 mm² to 6 mm² max. (single-wire)
Operating position: horizontal, lighting down or forward
5. Mounting
2 threaded holes M8 on the backside for mounting purposes (mounting material to be ordered separately).
Mount fasteners (e.g. ceiling bracket H8V P) with lock washer and hexagonal bolt to the threaded holes in
the housing.
When installing ceiling brackets 15A P please make sure to mount them in a right angle to the axis of the
fitting and that the slotted holes will open in one direction.
Visible indication

15A P H8V P RO .. TRS .. e 152 .. PM
4 5
For pipe-mounting clamps for 1½” and 2” are available.
The pole mounting luminaire (e 152 .. PM) comprises a metallic supporting tube acc. to DIN 49778 that is
located inside the housing of the luminaire. Such tube serves for mounting the lighting fitting to a pole
outreach.
6. Installation and Commissioning
Attention: The installation of explosion-proof explosion-proof light fittings must be done by skilled
electricians only. They must be well trained with regard to operating explosion-proof products !
Please pay attention to the application of this lighting fitting in dusty atmospheres:
The application of this luminaire is depending on the properties of the surrounding dust.
The maximum admissible surface temperature of the lighting fitting
- must be lower than 2/3 of the ignition temperature of the surrounding dust/air mixture and
- must be 75 K below the glow temperature of the dust that is lying on the light fitting.
(Please pay attention to the Standards EN 50281-1-2 to be considered for the installation of electrical
apparatus in areas with combustible dust.)
6.1 How to open and to prepare the light fitting
- use the triangular socket M6 for turning the
triangular bolt at the locking side of the
light fitting in direction of the arrow ”Open”.
- open the diffuser, push back the retaining
spring of the reflector and open the reflector.
- remove the mounting parts and the glands from
the plastic bag inside the light fitting
- screw the explosion-proof cable gland into
the borings at the front side of the housing and
fasten securely. Cable gland M25x1.5 with a
torque of 3 Nm an cable gland M20x1.5 with a
torque of 2.3 Nm.
Attention: The luminaires for an ambient temperature of +60 °C require explosion-proof cable glands
heat resistance of which is +75 °C min.!
For application in high humidity we would recommend a special explosion-proof breathing gland which is
quite effective against penetration of humidity into the light fitting. Such breathing gland is installed into an
opening that is not required for mounting any cable gland.
Attention: A breathing gland is allowed to be used in gas atmospheres only and at ambient temperatures
which are not higher than +55°C!
When using a breathing gland the ingress protection of the light fitting is IP 54 !
Attention: Any cable entries not required for electrical wiring must be closed by means of a stopping plug
In the explosion-proof cable gland or by an explosion-proof locking screw !
Ex-cable gland
with stopping plug
stopping plug Ex-locking screw
Ex-cable gland
with dust cover
Remove
dust cover
6.2 Electrical connection
- insert the connection cable through the Ex-cable gland.
Attention: The diameter of the connection cable must correspond to the sealing range of the Ex-cable
gland!
- remove the protecting cover from the connection terminal
block.
- connect the conductors to the right terminals as per
marking on the terminal block and tighten the screws.
Even tighten the screws which are not required.
Tighten all screws with a torque of 1,2 Nm.
Attention: 2 conductors max. are allowed to be
connected to each terminal.
Their cross sections must be equal.
- put the protecting cover back onto the connection
terminal block.
Standard wiring: Looping:
Through wiring system:
The light fitting can be built factory-made with a through wiring system for 6 poles max.. Cross-sections up
to a max. of 6 mm² for a current of 20 A are possible.
Attention: A through wiring system in explosion-proof luminaires can also be installed at a later stage by
using original components of the Adolf Schuch GmbH only! In this case it is a must to observe
the determinations of EN 50019!
Attention: For max. fuse protection of the through wiring system please pay attention to the information
sign at the internal bottom of the housing!
Note: This lighting fitting can also be equipped with a special wiring system (extra charge) for connection to
an emergency light power supply unit or for connection to a central battery system.
Upon request this luminaire can also be equipped with the monitoring module of type q 2436
(special equipment).
In both cases the permissible ambient temperature for the luminaire is +50° C.